Spatial-temporal impacts of invasive Spartina anglica on the rates and pathways of organic carbon mineralization and resulting C-Fe-S cycles in the intertidal wetland of the Han River Estuary, Yellow Sea.

Autor: An SU; Department of Marine Science and Convergence Technology, Hanyang University (ERICA Campus), 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, Republic of Korea; Institute of Sustainable Earth and Environmental Dynamics (SEED), Pukyong National University, 365 Sinseon-ro, Nam-gu, Busan 48547, Republic of Korea., Choi A; Department of Marine Science and Convergence Technology, Hanyang University (ERICA Campus), 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, Republic of Korea; Marine Environment Research Division, National Institute of Fisheries Science, 216 Gijanghaean-ro, Gijang-eup, Busan 46083, Republic of Korea., Baek JW; Department of Marine Science and Convergence Technology, Hanyang University (ERICA Campus), 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, Republic of Korea; Marine Environment Research Department, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yengdo-gu, Busan 49111, Republic of Korea; Department of Convergence Study on the Ocean Science and Technology, Ocean Science and Technology School, 385, Haeyang-ro, Yeungdo-gu, Busan 49111, Korea., Lee H; Department of Marine Science and Convergence Technology, Hanyang University (ERICA Campus), 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, Republic of Korea., Park J; Department of Marine Science and Convergence Technology, Hanyang University (ERICA Campus), 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, Republic of Korea., Mok JS; Department of Marine Science and Convergence Technology, Hanyang University (ERICA Campus), 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, Republic of Korea., Lee JS; Marine Environment Research Department, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yengdo-gu, Busan 49111, Republic of Korea; Department of Convergence Study on the Ocean Science and Technology, Ocean Science and Technology School, 385, Haeyang-ro, Yeungdo-gu, Busan 49111, Korea., Kang CK; School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea., Hyun JH; Department of Marine Science and Convergence Technology, Hanyang University (ERICA Campus), 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, Republic of Korea. Electronic address: hyunjh@hanyang.ac.kr.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2024 Sep; Vol. 206, pp. 116681. Date of Electronic Publication: 2024 Jul 10.
DOI: 10.1016/j.marpolbul.2024.116681
Abstrakt: To elucidate the spatial-temporal impact of invasive saltmarsh plant Spartina anglica on the biogeochemical processes in coastal wetlands, we investigated the rates and partitioning of organic carbon (C org ) mineralization in three representative benthic habitats: (1) vegetated sediments inhabited by invasive S. anglica (SA); vegetated sediments by indigenous Suaeda japonica; and (3) unvegetated mud flats. Microbial metabolic rates were greatly stimulated at the SA site during the active growing seasons of Spartina, indicating that a substantial amount of organic substrates was supplied from the high below-ground biomass of Spartina. At the SA site, sulfate reduction dominated the C org mineralization pathways during the plant growing season, whereas iron reduction dominated during the non-growing season. Overall, due to its greater biomass and longer growing season than native Suaeda, the expansion of invasive Spartina is likely to greatly alter the C org -Fe-S cycles and carbon storage capacity in the coastal wetlands.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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